Method for determination of real subsoil geological formation

Pending Publication Date: 2021-05-13
TOTAL SE
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  • Abstract
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Problems solved by technology

Furthermore, all embodiments are not necessarily intended to solve all or even any of the problems brought forward in this section.
Nevertheless, it is well known that this meshing prior to any modeling has several drawbacks as the size of the meshes, the orientation of the meshes, and the number of the meshes that induce a bias in the modeling.
For instance, this meshing prior to any modeling cannot take into account the sedimentary bodies/formations of the subsoil which will be identified during the modeling ph

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  • Method for determination of real subsoil geological formation
  • Method for determination of real subsoil geological formation
  • Method for determination of real subsoil geological formation

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[0123]In the following description, fluvial geological formations are described exemplifying the disclosure but it applies to any possible geological formations (e.g. lobes, turbiditic systems, etc.)

[0124]Therefore, in the following, “fluvial trajectory” may be replaced by “sediment trajectory” or “flow trajectory” without significant modification.

[0125]FIG. 1 is a chart describing a possible process of the disclosure.

[0126]In this chart, the manipulated model is possibly a parametric model of the subsoil. A parametric model Mp(u, v, t) of the subsoil is a transformation of a 3D model M(x, y, z) of the subsoil.

[0127]A 3D model M(x, y, z) of a real subsoil describes the subsoil according to its real geographical coordinates (x, y, z) (i.e. at the present time).

[0128]A parametric model Mp(u, v, t) of said subsoil describes the state of the subsoil at a geological time t: each layer represents the state of the subsoil at the time t where the sedimentation occurs. One may say that the p...

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Abstract

The present disclosure relates to a method for determination of a real subsoil geological formation. In at least one embodiment, the method includes receiving a model representing the real subsoil. The model includes a shore line and a fluvial formation connected to the shore line at a point of the model. The shore line divides the model into a marine zone and a continental zone. The method further includes determining a delta zone in the model based on the shore line and based on the fluvial formation, determining a stochastic trajectory in said delta zone, and determining a lobe formation in said delta zone based on the determined stochastic trajectory based on a stochastic process.

Description

BACKGROUND OF THE DISCLOSURE[0001]The present disclosure relates to determination of subsoil formations, especially for the use in the hydrocarbon industries.[0002]The approaches described in this section could be pursued, but are not necessarily approaches that have been previously conceived or pursued. Therefore, unless otherwise indicated herein, the approaches described in this section are not prior art to the claims in this application and are not admitted to be prior art by inclusion in this section. Furthermore, all embodiments are not necessarily intended to solve all or even any of the problems brought forward in this section.[0003]In the past, when a subsoil formation should be determined, a same paradigm is used: “the model used for said determination should be meshed before any modeling”.[0004]Indeed, for any modeling methods, the meshing is mandatory.[0005]Nevertheless, it is well known that this meshing prior to any modeling has several drawbacks as the size of the mes...

Claims

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Application Information

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IPC IPC(8): G01V1/30G01V3/38G01V99/00
CPCG01V1/306G01V2210/665G01V99/005G01V3/38G01V2210/661
Inventor MASSONNAT, GÉRARDGAL, CÉDRIC
Owner TOTAL SE
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